Possible to search all months’ posts in admin?

I have about 3 years worth of posts in one of my WP installs. I am trying to find all posts with a specific name mentioned in them to research something; but cannot remember when each is posted, so I am having to search month by month on the admin page.

(And for whatever reason, when I use the search on my blog’s template, it does not find it at all … weird … but that doesn’t concern me right now. I can always replace the search function with several search-related plugins I have.)

I’ve searched through the posts here, but either nothing like this exists, or I am not using the correct keywords. I need something that can search all posts via the admin page. Is this possible? Or does an admin fix/plugin with this ability exist?

It shouldn’t. The search in WordPress is a bit dumb. That’s not meant as an insult but as a decription of it’s pattern matching power, which is not all that powerful. If a search term exists anywhere in a post, it should provide a match.

If you know that the term is set in italics, one thing you could try is: